00495102

Component

http://onlinepubs.trb.org...trr/1989/1228/1228-021.pdf

https://scholar.google.co...kins&publication_year=1989

An analytical method is described for the rapid quantitative determination of naphthene aromatics (aromatics) and polar aromatics (polars) in asphalt cement using high-performance liquid chromatography (HPLC). The hexane-insoluble asphaltenes are removed beforehand and the petrolene solution passed through an NH2 energy analysis column. After elution of the naphthene aromatics, the solvent flow direction is reversed and the polar aromatics peak follows. Ultraviolet absorption at 254 nm is used for detection. A complete sample run consumes less than 3 hr. Results of analysis agree favorably with those obtained following the short procedure of ASTM D4124. Considering the ASTM D4124 results "correct," the average absolute error for 49 determinations on 22 samples from four different refineries amounted to plus or minus 0.66 and plus or minus 0.82 percentage point for the naphthene aromatics and polar aromatics fractions, respectively. The standard deviation for seven determinations on one sample is 0.89 and 0.45 percentage point for the naphthene aromatics and polar aromatics fractions, respectively.

This paper appears in Transportation Research Record No. 1228, Asphalt Mixtures and Asphalt Chemistry. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01407207

p. 183-190

1989

Transportation Research Record

0309048230

Figures (5) ; References (41) ; Tables (4)

Accuracy; Aromatic hydrocarbons; Asphalt cement; Chemical analysis; Liquid chromatography; Performance; Quantitative analysis; Standard deviation; Ultraviolet radiation

High performance; Rapid methods

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

TRIS, TRB

Jun 30 1990 12:00AM

• ADSORPTION OF MODEL ASPHALT FUNCTIONALITIES, AC-20, AND OXIDIZED ASPHALTS ON AGGREGATE SURFACES
• ASSESSMENT OF STRIPPED ASPHALT PAVEMENT
• CHANGES OCCURRING IN ASPHALTS IN DRUM DRYER AND BATCH (PUB MILL) MIXING OPERATIONS
• COMPARATIVE EVALUATION OF LABORATORY COMPACTION DEVICES BASED ON THEIR ABILITY TO PRODUCE MIXTURES WITH ENGINEERING PROPERTIES SIMILAR TO THOSE PRODUCED IN THE FIELD
• DEGRADATION OF DENSE AGGREGATE GRADINGS
• DETECTION OF AMINE-BASED ANTISTRIPPING ADDITIVES IN ASPHALT CEMENT
• DEVELOPMENT OF FRACTURE CRITERION FOR ASPHALT MIXES AT LOW TEMPERATURES
• EFFECT OF COAL-CONTAMINATED AGGREGATE ON ASPHALTIC CONCRETE PAVEMENT PERFORMANCE
• EFFECTS OF AMBIENT TEMPERATURE AND THERMAL CYCLING ON THE CREEP OF BITUMINOUS PAVEMENT MATERIALS
• EVALUATION OF EFFECTS OF DEICING ADDITIVES ON PROPERTIES OF ASPHALT MIXTURES
• EVALUATION OF HEALING IN ASPHALT CONCRETE BY MEANS OF THE THEORY OF NONLINEAR VISCOELASTICITY
• EVALUATION OF OVEN SIMULATION OF HOT-MIX AGING BY AN FT-IR PELLET PROCEDURE AND OTHER METHODS
• FIELD CONTROL TEST FOR DEBONDING OF ASPHALTIC CONCRETE
• FIELD TRIALS OF A LEAD-BASED ASPHALT ANTIOXIDANT
• MOISTURE SUSCEPTIBILITY BEHAVIOR OF ASPHALT CONCRETE AND EMULSIFIED ASPHALT MIXTURES USING THE FREEZE-THAW PEDESTAL TEST
• PERFORMANCE OF A FULL-SCALE PAVEMENT USING COLD RECYCLED ASPHALT MIXTURE
• PRECISION OF METHODS FOR DETERMINING ASPHALT CEMENT CONTENT
• PREDICTING THE EFFECTS OF MOISTURE ON WHEELPATH RUTTING IN ASPHALT CONCRETE
• PROPERTIES OF ASPHALT-OIL SHALE ASH BITUMINOUS MIXTURES UNDER NORMAL AND FREEZE-THAW CONDITIONS
• REQUIRED NUMBER OF SPECIMENS FOR MOISTURE SUSCEPTIBILITY TESTING
• USE OF A MULTIWAVELENGTH UV-VIS DETECTOR WITH HP-GPC TO GIVE A THREE-DIMENSIONAL VIEW OF BITUMINOUS MATERIALS
• VARIATIONS IN MOLECULAR SIZE DISTRIBUTION OF VIRGIN AND RECYCLED ASPHALT BINDERS ASSOCIATED WITH AGING